Tata Power has received a Letter of Intent (LOI) from REC Power Development and Consultancy Limited (RECPDCL) for the acquisition of Ryapte Power Transmission Limited, a special purpose vehicle (SPV) established for the development of a major transmission infrastructure project in Karnataka.
The project will be implemented on a Build-Own-Operate-Transfer (BOOT) basis and is designed to provide transmission services for a period of 35 years from the Scheduled Commercial Operation Date (SCOD). The project is scheduled to achieve commercial operation within 30 months from the transfer of the SPV.
The transmission project involves the construction and commissioning of an extensive power evacuation network comprising approximately 250 kilometres of transmission lines, including 400 kV double-circuit lines, 220 kV double-circuit lines, and 220 kV underground cable systems across key locations in Karnataka.
The scope includes the development of a 400 kV double-circuit transmission line connecting the Ryapte AIS substation to the proposed 400/220 kV Doddathaggalli GIS substation, along with another 400 kV double-circuit line linking the existing Kolar substation to Doddathaggalli. Additionally, 220 kV double-circuit transmission lines will connect Doddathaggalli with the existing substations at Ekarajapura, Hosakote, and Sarjapura. Underground cable connectivity at the 220 kV level will also be established between Doddathaggalli and these substations.
As part of the project, Tata Power will develop two major greenfield substations. The first will be a 400/220 kV Air Insulated Substation (AIS) at Ryapte in Tumakuru district, equipped with five 500 MVA transformers and two 125 MVAr 400 kV bus reactors. The second will be a 400/220 kV Gas Insulated Substation (GIS) at Doddathaggalli near Hosakote, featuring three 500 MVA transformers and two 125 MVAr 400 kV bus reactors.
The project is expected to strengthen Karnataka’s transmission infrastructure and support the growing power demand in the region by enhancing network reliability and evacuation capacity.
The annual transmission charges associated with the project are estimated at ₹521.07 crore, reflecting the scale and strategic importance of the transmission asset.
